新增：新增用户登录和退出 API（引入 Sa-Token 依赖，详情可见 README 介绍）

continew-admin-common/src/main/java/top/charles7c/cnadmin/common/util/CheckUtils.java

@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2022-present Charles7c Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package top.charles7c.cnadmin.common.util;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.core.util.StrUtil;
+
+import top.charles7c.cnadmin.common.exception.BadRequestException;
+
+/**
+ * 检查工具类
+ *
+ * @author Charles7c
+ * @since 2022/12/21 20:56
+ */
+@Slf4j
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class CheckUtils {
+
+    /**
+     * 如果为空，抛出异常
+     *
+     * @param obj
+     *            被检测的对象
+     * @param message
+     *            错误信息
+     */
+    public static void exIfNull(Object obj, String message) {
+        if (obj == null) {
+            log.error(message);
+            throw new BadRequestException(message);
+        }
+    }
+
+    /**
+     * 如果为空，抛出异常
+     *
+     * @param str
+     *            被检测的字符串
+     * @param message
+     *            错误信息
+     */
+    public static void exIfBlank(CharSequence str, String message) {
+        if (StrUtil.isBlank(str)) {
+            log.error(message);
+            throw new BadRequestException(message);
+        }
+    }
+
+    /**
+     * 如果相同，抛出异常
+     *
+     * @param obj1
+     *            要比较的对象1
+     * @param obj2
+     *            要比较的对象2
+     * @param message
+     *            错误信息
+     */
+    public static void exIfEqual(Object obj1, Object obj2, String message) {
+        if (ObjectUtil.equals(obj1, obj2)) {
+            log.error(message);
+            throw new BadRequestException(message);
+        }
+    }
+
+    /**
+     * 如果不相同，抛出异常
+     *
+     * @param obj1
+     *            要比较的对象1
+     * @param obj2
+     *            要比较的对象2
+     * @param message
+     *            错误信息
+     */
+    public static void exIfNotEqual(Object obj1, Object obj2, String message) {
+        if (ObjectUtil.notEqual(obj1, obj2)) {
+            log.error(message);
+            throw new BadRequestException(message);
+        }
+    }
+
+    /**
+     * 如果条件成立，抛出异常
+     *
+     * @param conditionSupplier
+     *            条件
+     * @param message
+     *            错误信息
+     */
+    public static void exIfCondition(java.util.function.BooleanSupplier conditionSupplier, String message) {
+        if (conditionSupplier != null && conditionSupplier.getAsBoolean()) {
+            log.error(message);
+            throw new BadRequestException(message);
+        }
+    }
+}

continew-admin-common/src/main/java/top/charles7c/cnadmin/common/util/ExceptionUtils.java

@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2022-present Charles7c Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package top.charles7c.cnadmin.common.util;
+
+import java.util.function.Consumer;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+/**
+ * 异常工具类
+ *
+ * @author Charles7c
+ * @since 2022/12/21 20:56
+ */
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class ExceptionUtils {
+
+    /**
+     * 如果有异常，返回 null
+     *
+     * @param exSupplier
+     *            可能会出现异常的方法执行
+     * @param <T>
+     *            /
+     * @return /
+     */
+    public static <T> T exToNull(ExSupplier<T> exSupplier) {
+        return exToDefault(exSupplier, null);
+    }
+
+    /**
+     * 如果有异常，执行异常处理
+     *
+     * @param supplier
+     *            可能会出现异常的方法执行
+     * @param exConsumer
+     *            异常处理
+     * @param <T>
+     *            /
+     * @return /
+     */
+    public static <T> T exToNull(ExSupplier<T> supplier, Consumer<Exception> exConsumer) {
+        return exToDefault(supplier, null, exConsumer);
+    }
+
+    /**
+     * 如果有异常，返回默认值
+     *
+     * @param exSupplier
+     *            可能会出现异常的方法执行
+     * @param defaultValue
+     *            默认值
+     * @param <T>
+     *            /
+     * @return /
+     */
+    public static <T> T exToDefault(ExSupplier<T> exSupplier, T defaultValue) {
+        return exToDefault(exSupplier, defaultValue, null);
+    }
+
+    /**
+     * 如果有异常，执行异常处理，返回默认值
+     *
+     * @param exSupplier
+     *            可能会出现异常的方法执行
+     * @param defaultValue
+     *            默认值
+     * @param exConsumer
+     *            异常处理
+     * @param <T>
+     *            /
+     * @return /
+     */
+    public static <T> T exToDefault(ExSupplier<T> exSupplier, T defaultValue, Consumer<Exception> exConsumer) {
+        try {
+            return exSupplier.get();
+        } catch (Exception ex) {
+            if (exConsumer != null) {
+                exConsumer.accept(ex);
+            }
+            return defaultValue;
+        }
+    }
+
+    /**
+     * 异常提供者
+     *
+     * @param <T>
+     *            /
+     */
+    public interface ExSupplier<T> {
+        /**
+         * 获取返回值
+         *
+         * @return /
+         * @throws Exception
+         *             /
+         */
+        T get() throws Exception;
+    }
+
+}

continew-admin-common/src/main/java/top/charles7c/cnadmin/common/util/SecureUtils.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2022-present Charles7c Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package top.charles7c.cnadmin.common.util;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+import cn.hutool.core.codec.Base64;
+import cn.hutool.crypto.SecureUtil;
+import cn.hutool.crypto.asymmetric.KeyType;
+
+/**
+ * 加密/解密工具类
+ *
+ * @author Charles7c
+ * @since 2022/12/21 21:41
+ */
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class SecureUtils {
+
+    /**
+     * 公钥加密
+     *
+     * @param data
+     *            要加密的内容
+     * @param publicKey
+     *            公钥
+     * @return 公钥加密并 Base64 加密后的内容
+     */
+    public static String encryptByRsaPublicKey(String data, String publicKey) {
+        return Base64.encode(SecureUtil.rsa(null, publicKey).encrypt(data, KeyType.PublicKey));
+    }
+
+    /**
+     * 私钥解密
+     *
+     * @param data
+     *            要解密的内容（Base64 加密过）
+     * @param privateKey
+     *            私钥
+     * @return 解密后的内容
+     */
+    public static String decryptByRsaPrivateKey(String data, String privateKey) {
+        return new String(SecureUtil.rsa(privateKey, null).decrypt(Base64.decode(data), KeyType.PrivateKey));
+    }
+
+    /**
+     * MD5 加密
+     *
+     * @param data
+     *            要加密的内容
+     * @param salt
+     *            盐
+     * @return 加密后的内容
+     */
+    public static String md5Salt(String data, String salt) {
+        return SecureUtil.md5(SecureUtil.md5(data) + salt);
+    }
+}